Shoe-maker s jack



clamped together.

UNITEn STATES PATENT OFFICE.

FRANK SGHIPPER AND LUKE DOBEL, OF AURORA, INDIANA.

SHOE- MAKERS JACK.

SPECIFICATION forming part of Letters Patent No. 252,525, dated January17, 1882.

Application filed September 24, 1881. (No model.)

To all whom it may concern Beit known that we, FRANK SoHIPPER and LUKEDOBEL, of the city of Aurora, in the county of Dearborn and State ofIndiana, have invented certain newand useful Improvements in Shoe-MakersJacks, of which the following is a specification.

The object of this invention is to provide a device which is adjustable,so as to bring the article held thereon to any desired position, thatthe operator may conveniently perform all the different operations oflasting, and also of sewing, pegging, or nailing on the soles, heeling,trimming, burnishing, and finishing, thus completing the article withoutnecessitating its removal from the time it is put on until it isfinished. This object is accomplished by the means illustrated in theaccompanying drawings, in which- Figure 1 is a side elevation of ourimproved device, except the cylindrical cross-head, which is shown inaxial section. Fig. 2 is a vertical transverse section taken in line a mof Fig. 1.

Thejack and cross-head are supported by a hinged base consisting of astationary part, A,and asemi-rotating part, 0, journaled upon a bolt, B.The stationary part is secured to a table or bench by screws passingthrough its circular foot, and has projecting from its top, upon oneside, a plate or disk, A, which is centrally perforated to receive thejournal-bolt B, which passes through it, the piece G, and a circularcap, D, and has a thumb-nut, B, on its screw-threaded end, by which theparts are The circular part of piece 0 is cast with a central depressionto reduce friction and to leave a space for the spurs c a a, the firstbeing cast upon piece 0 and the latter upon piece A. The purpose of thespurs is to limit the movement of piece (3, stopping its shaft in ahorizontal position when it is turned down upon either side. The upperend of pieceAconforms to the peripheries of pieces 0 D, and has adepression to receive a spur which projects from the edge of piece D toprevent the cap from turning when the screw is turned to clamp or loosenpiece 0. The abutting faces of pieces A GDareplaned or turned offsmooth. The shaft of piece (3 is bored from the top to a transverseperforation above the disk part to receive the journal of cross-head E,which passes through the perforation, and

is screw-threaded at its lower end to receive out 6, by which thecross-head is held in place. The cross-head E is bored to receive theshaft of heelsupporting piece F, which passes through it and has upoiione end the gooseneck Gr, upon which is fitted the toe-piece E. This isadjustable to adapt the device to be used for allsizes of boots andshoes. The parts are secured together by a nut, f, upon the end of theshaft. In the upper slotted end of the heel-support is journaled apiece, I, which has projecting from its upper side the customarylast-pin, i. To the side of this piece is secured a spring, J, the lowerend of which bears against the upright shaft, and is kept in place by ascrew which passesinto the shaft through the bifurcated end ofthe'spring.

The upper end of piece 0, the end of piece .E, and the interior ofthumb-nut B are counby placing a block under the bend in the piece Fwhen the device is in the position shown in the drawings; but ordinarilythe cross-head is rotated upon its shaft to a position at right anglesto that shown in Fig. 1, and shaft of piece 0 turned down until spur crests upon spur a, when the jack-head is rotated a quarter of arevolution. This brings the lower end of the heel-support upon the tableor bench.

It will be seen that a boot secured upon our jack may be readily turnedso as. to present any side to the operator, and hence need not beremoved until it is entirely finished.

Having thus described our invention, what we claim is-- 1. In ashoe-makers jack, the combination, substantially as specified, of ahinged supporting-stand and a jack-supporting head, as E, C, E, F, Gr,and H, arranged to operate as speciadapted to receiveth'elast-supporting parts and fled.

swiveled to turn in the supporting-stand with a. the last-supportingparts fitted to turn in piece E, as set forth.

2. In a shoe-makers jack, the combination, Witnesses:

' substantially as hereinbefore set forth, of sta-' GEO. RENNER,

tionary parts A A B D and the movable parts DAVID B. BEATY.

